MT850B

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● The MT series horizontal five-axis milling machine offers efficient production capabilities, equipped with a high-performance control system and high-speed contour control, achieving optimal surface accuracy in the shortest machining time. Highly dynamic five-axis drive machining enables the machining of complex workpieces, meeting the requirements of five-axis machining.

● Machining length 850mm, maximum machining diameter ψ500mm, maximum rotation diameter ψ520mm, and maximum spindle speed 2500rpm. The Y-axis features 210mm travel (±105° from centerline), a milling spindle speed of 12000rpm, a maximum torque of 54Nm, and a 240° oscillating axis range. Equipped with a fully closed-loop feedback system, it enables high-performance milling, fixed-axis bevel machining, and five-axis simultaneous machining.

● The machine utilizes a direct-drive electric spindle equipped with an absolute encoder, a C-axis indexing accuracy of 10 arc seconds (0.0027°), and a repeatability of 1.5 arc seconds (0.0004°). The spindle motor is equipped with a cooling system to minimize thermal displacement and maintain a constant spindle operating temperature. The spindle system undergoes rigorous dynamic balancing tests, ensuring excellent precision retention, high rigidity, and high efficiency. This allows the machine to perform not only finishing operations but also roughing and heavy cutting, making it particularly suitable for mass production of complex shapes and high-quality finishes.

● The highly rigid, integrated B-axis swing mechanism and 60-ton tool magazine provide a wider tool change range and enhance efficiency.

● This single machine tool handles specialized operations previously performed by specialized machines, such as gear machining and long-hole drilling. A variety of core distances are available to accommodate machining of large diameters and long workpieces.

ITEMNAMEUNITMT850B
CapacityMax. rotating diametermmΦ520
Max. machining diametermmΦ500
Max. machining lengthmm850
Bar processing capacitymmΦ70
TravelX-axis travelmm510
Y-axis travelmm±105
Z1-axis travelmm1100
B-axis index angle°±120˚
SpindleSpindle noseASAA2-8
Spindle through-hole dia.mm86
Spindle bearing inner dia.mmFront 120, back 110
Chuck Sizemm10″
Max. spindle speedrpm2500
Sub SpindleZ2-axis travelmm950
Sub Spindle noseASAA2-6
Sub Spindle through-hole dia.mm66
Sub Spindle bearing inner dia.mmFront 110, back 90
Chuck Sizeinch8″
Max. sub-spindle speedrpm4300
Milling SpindleMilling spindle taper hole/HSK-T63   
Milling spindle max. speedrpm12000
Milling spindle torque (S1-100%)N.m88
Milling spindle bearing bore dia.mm70
Max. tool weightkg5
Max. tool momentum (from datum)N.m3.9
Milling spindle drive motor (S1-100%)kw22
Milling spindle coupling index angle°
B-axisB-axis DD motor powerkw5.3
B-axis min. index angle°0.001°
DD motor max. speedrpm360
Feed rateX-axis rapid feed rateM/min24
Y-axis rapid feed rateM/min24
Z1-axis rapid feed rateM/min24
Z2-axis rapid feed rateM/min24
ATCTool holder type/HSK-T63    
Tool capacitypcs60
Max. tool diameter/lengthmmΦ70/200
Max. tool weightkg5
MotorSpindle motor powerkw21
Spindle motor torqueNm240-400
Sub-spindle motor powerkw22
Sub-spindle motor torqueNm100-226
X, Y, Z1 axis motorskw4.3
Z2 axis motorskw3.14
External DimensionsOverall dimensionsmm4500*2700*2700
Machine weight approx.kg9800

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